to work

work

working

to working

whom

who

where

which

Only after I had realized what I had missed did they tell me about it later.

As soon as they told me about it I realized what I had missed.

Only when they told me about it later did I realize what I had missed.

They told me about it and I realized what I had missed.

Provided that she has a car, she can drive to work.

If she had a car, she could drive to work.

If she has a car, she could drive to work.

As if she had a car, she can drive to work.

sound

habit

option

race

however

for example

therefore

moreover

younger than

older than

taller than

shorter than

contradiction

depletion

harmony

pressure

as soon as we have the interview result

as soon as we were having the interview result

as soon as we had the interview result

as soon as we had had the interview result

We should discuss this matter in great detail.

We might discuss this matter in great detail.

We needn't discuss this matter in great detail.

We mustn't discuss this matter in great detail.